Neck-forming tool.



No. 714,304. Patented mw. 25,1002.l

E.V HUFFMAVN.` NECK FORMING TO0L. (Application mea July a1, 1000.) (No Model.) 2 sheetssheea l.

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ellirlliill rfc- Y Mmmm g .C kn... wf 4 No. `7|4,3n4. l Patented Nov. 25, |902,

E. HOFFMAN.

NECK FDRMING TO0L.

` (Applic'aizipnqled July 31. 1900.)

` ma Model.) 2 sheets-'sheet 2.

UNITED .l @STATES l ATENT OFFICE.

EDMND HOFFMAN, OF BRIDGETON, NEW JERSEY, ASSIGNOR TO HIMSELF AND OHARLESVE. E. WHITELEY, OF BRIDGETON, NEW JERSEY, HENRY WHITELEY, OF PHILADELPHIA,

PENNSYLVANIA, AND WILLIAM G.

WIIITELEY AND ROBERT P. FRIST, OF WILMINGTON, DELAWARE.

NECK-FORMING TOOL.

SPECIFICATION forming part of Letters Patent No. 714,304, dated November 25, 1902.V

Application led .Tuly 31, 1900. Serial No. 25,373. (No model.)

To all whom it may concern.-

Be it known that 1, EDMUND HOFFMAN, a citizen of the United States of America, residing in Bridgeton, in the county of Cumberland, in the State of New Jersey, have invented a certain new and` useful Improvement in Neck-Forming Tools, of which the following is a true and exact description, reference being had to the accompanying drawings, which ro form a part thereof.

` My invention relates to the construction of tools for forming the necks and lips of bottles,

and has for its object to provide a tool of sim.

ple and efficient construction and which is i5 adaptedfor forming bottle-necks with outwardly-extending lugs adapted to make a bayonet or similar joint with properly-formed caps; and my invention consists in combining 3o preference Iform on the spindle anannular enlargement, over which the rotatable annulus fits, the enlargement serving to mold the extreme end of the 4bottle-neck.

Reference being now had to the drawings which illustrate my invention, Figurel 1 is a side elevation, `partly in central longitudinal section, of my improved tool. Fig. 2 isalongitudinal section on the line 2 2 of Fig. 1; Fig. 3, a detached view of the rotating annulus 4o shown on the same section as in Fig. 1. Fig. 4 is an end View of the annulus. Fig. 5 is an elevation of the bottlefneck molded on the tool, Fig. 1. Fig. 6 is a cross-sectionthrough the lip of the bottle on the line 6 6 of Fig. 5. Fig. 7 is a side elevation, partly in central longitudinal section, of a modified form of tool embodying my invention; Fig. 8, a longitudinal section on the line 8 8 of Fig. 7;

Fig. 9, an end view of the spindle andannulus shown in Fig. '7; Fig. l0, a perspective 5o viewof the rotating annulus; Fig. 11, a longitudinal section through the aunulus on the line 11 l1 of Fig. 9; Fig. 12, an elevation of a bottle-neck formed on the tool shown in Fig.`

7, and Fig. 13 a cross-section through the 5 5 lip of the bottle on the section-line 13 13 of Fig. 12.

A indicates a U-shaped spring, to which are attached the jaws B B, these jaws being formed, as shown, with perforations B B for 6o guidepins connected with the spindle, recesses B2, formed to clear the rotating lipforming annulus, and inwardly-projecting flanges B3 B4, the faces B3 of which lit over .the top of the annulus, while the faces B4 65` when closed together are substantially flush with or rather tangent to the inner formingsnrface of the annulus.

B5 and B6 are bead-forming grooves in the jawsiB and B7, the surface giving. shape to 7o the neck of the bottle lying beyond the beads.

O is the spindle of the tool,which, as shown, has a threaded end O', extending through a perforation in the spring A, to which it is attached by the nuts D and D. y

CG indicates the other or free end of the spindle, which extends into and torms the inside of the bottle-neck, and, as shown, the spindle at the base of the portion OG is formed with an annular flange O4, having a curved 8o outerface, (indicated at 05,) againstwhich the end of the bottle abnts and byl means of which the extreme lip is formed.` Below this flange O4, I have shown a somewhat-enlarged section C3, and below this a spindle-section C2, to which is rmly secured a block E, from which extend the guide-rods E', which extend through the perforations B' in `the, `jaws and serve to keep the spindle and jaws in substantially fixed relationship to each other.

F is a rotatable lip-forming annulus which, as shown, fits on the portions C3 and O4 of the spindle and is held in position-that is, pre- Vented from moving longitudinally-by the block E. The inner Wall F ofthe annulus 95 F forms the extreme lip of the bottle on the outside and is formed with outwardly-extending lug-molding recesses, (indicated at F2,) over which, as already stated, the faces B2 B4 of the jaws extend when they are closed together and into which enough of the glass of the bottle-neck is forced to form such lugs as are indicated in Figs. 5 and 6 at G4, G indicating the bottle-neck, G G2 the beading, G3 the plane annular surface lying between the beading and the lugs, G4 G5 indicating the extreme outer lip of the bottle and G6 the portion of the lip lying between the lugs G4. Y

The operation of the tool is very simple. The bottle-neck in a plastic condition has inserted in it the spindle end C, the extreme end of the neck being abutted against the curved surface C5. The jaws B B, which normally stand outward, are then closed together, pressing against the sides of the plastic material of the neck, and the bottle is then rotated in the tool until it assumes the` exact conformation provided for by the operative parts of the tool, the lip,7 so to speak, of the bottle being molded in the rotatable annulus F, which turnsin the tool as the bottle turns, so that the portions of the glass which are pressed out into the recesses F2 are smoothed down to reproduce the exact shape and exactl arrangement of the recesses in the annulus. When the molding is complete, the jaws B B are permitted to open, and the bottle is then readily removed.

The modiied tool shown in Figs. 7 to ll is one which differs from the tool already described in that it is adapted to mold the neck, and particularly the lip, of the bottle by pressing the plastic glass inward to a greater extent than is the case in the first-described tool, the most striking difference being that in the use of the first tool the bottle-neck is of about the diameter of the wall F of the annulus F and the lugs on the lip are formed by portions of the glass being pressed outward, while in the modified tool the bottle-neck is of about the diameter of the portion f2 of the annulus and the lugs are formed by pressing the plastic glass inward around the lugs, the lugs themselves being formed, so to speak, from portions of the glass which are allowed to remain in substantially the position in which they are presented to the tool. In this modified tool the recesses which mold the lugs are indicated at f 2, f indicating the inner surfaces of the lip-forming annulus. The bottleneck formed by the modified tool is shown at GX, Fig. 12, the beading G G2 being substantially identical with the beading on the bottle neck G, the extreme lip G5 being also substantially identical, the plane .annular band between the beadings and the lugs being in the modified neck indicated at G3, the lugs at g4, and the space between the lugs at gs. By comparing the two bottle-necks it will be seen that the portions g2g6 are much more deeply indented than the portions G8 G6, as shown in Fig. 5.

The operation of the modified tool is the same as that of the tool first described except in the degree of displacement which is eected in the forming of the bottle-neck.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A neck-forming tool for bottles having a spindle provided with an end adapted to enter and assist in formi ng a bottle-neck, in com= bination with a freely-rotatable lip-forming annulus, as F, turning on the spindle and having radially outwardly extending lug-forming recesses, as F2, in its edge and a pair of jaws, as B B, adapted to form the bottle-neck in the rear of the lip, said jaws having Iianges, as BS B4, which when closed extend over the recesses substantially flush with the walls of the lip-forming annulus.

2. A neck-forming tool for bottles having a spindle provided with an end adapted to enter and assist in forming a bottle-neck and an annular enlargement C4 having a curved upper face C5 in combination with a freelyrotatable lip-forming annulus, as F, turning Y on the part C4 of the spindle and having radially outwardly extending lug-forming recesses, as F2, in its edge, and a pair of jaws, as B B, adapted to form the bottle-neck in the rear of the lip, said jaws having iianges, as B3 B4, which when closed extend over the recesses substantially flush with the walls of the lip-forming annulus.

EDMUND HOFFMAN.

Witnesses: I

CHAS. A. WOODRUFF, JAS. BOYD POTTER. 

